Originally posted by Marc Benford
Pawn = 1
Knight = 3
Bishop = 3
Rook = 5
Queen = 9 or 9.5
Bishop pair = +0.5
But I would like to know what relative point values do engines use (preferably strong engines, like Stockfish, Houdini, Rybka, Komodo, ...).
If the point value that the engine assign to the pieces depends on the position of the pieces on the boa ...[text shortened]... ould like to know the average point values of the pieces.
Thanks in advance for your answers.
Those are basically the values that programmers give to their engines, but with the same variation as for humans. What is possible, and I don't know if it has been done, is to vary the values and see how it affects the performance of the engine. They may well not have done as engines basically work by calculating deeply and making a rough assessment of the final position. It is the depth that they can calculate lines to which tends to matter, not how accurate the assessment of the final position is.
You can download the source code for Crafty and look in there to see which values it uses.